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Finding the Fourth Proportional to 183,871.20, 275,839.20 and 65,611.20

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Solution

The fourth proportional to 183,871.20, 275,839.20 and 65,611.20 is: 98,428.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,871.20 : 275,839.20 = 65,611.20 : x
  2. Step 2: Convert to fraction form
    183,871.20/275,839.20 = 65,611.20/x
  3. Step 3: Cross multiply
    183,871.20x = 275,839.20 × 65,611.20
  4. Step 4: Simplify right side
    183,871.20x = 18,098,140,919.04
  5. Step 5: Solve for x
    x = 18,098,140,919.04/183,871.20
  6. Step 6: Final answer
    x = 98,428.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.